Question

line PQ is a tangent to the two circle at P and Q lie on opposite sides of line. show that line PQ divides segment MN in the ratio of the radii

Anyone can answer these questions...

tangents PA and PB are drawn from an external point P to two concentric circles with centre O and radii 8cm and 5cm respectively. if ap = 15cm , then find the length of BP

a quadrilateral ABCD is drawn to circumscribe a circle. prove that AB + CD = AD + BC

verify LMV theorem for f(x) =√25-x² in [-3,5]

find k f(x)= 3x+4tan2x/x x is not = 0, k when x=0 at x=0